Ultrafire 705 from ebay $3.50

Minor news, but I was able to verify this. The unbranded version of this little puppy (such as this one here) puts out slightly less light than my Zebralight SC600 on it’s M2 setting (which is 21 lumens).

Still, little lights like this can still come in handy occasionally, so it’s worth the mere few bucks it costs.

I put one on the prototype of my LED/Battery analyzer (Any interest in a LED/Battery analyzer device?) and measured around 25 lumens.